*{
    padding: 0;
    margin: 0;
    box-sizing: border-box;
}
.top{
    background: #dddddd;
    height: 300px;
    text-align: center;
}
.top h1{
    font-size: 50px;
    display: inline-block;
    margin-top: 100px;
    color: #000;
}
.top p{
    color: #000;
}
.container{
    width: 70%;
    margin: 0 auto;
}
.container h1{
    margin-top: 10px;
    margin-bottom: 20px;
}
#n,#s,#a,#btn{
    border: 1px solid #ccc;
    border-radius: 10px;
    width: 240px;
    height: 40px;
    outline: none;
    padding-left: 10px;
    margin-right: 30px;
}
#btn{
    cursor: pointer;
}
.text li{
    list-style: none;
    border-top: 1px solid #cccccc;
    border-bottom: 1px solid #cccccc;
    height: 50px;
}
.span{
    display: flex;
    border-top: 1px solid #cccccc;
    border-bottom: 1px solid #cccccc;
}
.span span{
    width: 32%;
    display: inline-block;
    line-height: 50px;
    font-weight: bold;
}
.text li span{
    width: 32%;
    display: inline-block;
    line-height: 50px;
}